A plant fossil that lay unnoticed for a century is unexpectedly large for something so old, and it could upend our ideas about the evolution of land plants
Earth’s air suddenly got a lot more oxygen around 1.6 billion years ago and that could have triggered the evolution of large multicellular organisms
A pair of mass extinctions struck in quick succession just before the dinosaur era, and the birth of a mountain range in South Africa may have been partly to blame
A nearly complete skeleton of an early long-necked plesiosaur has been found in a clay pit in Germany, and reveals they survived a mass extinction
Two 9.7-million-year-old fossil teeth found in Germany probably belong to a primitive primate and something like a deer, not an early human ancestor as has been reported
A bird group named the Vegaviidae, which resembled modern loons and geese, is the first identified with members that lived before and after the Cretaceous extinction
A fossil salamander that lived at least 34 million years ago is in such good condition that the remains of a frog it ate are still in its digestive tract